The Heater,water,electric, cataloged under National Stock Number 4520-01-251-7889, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Smith a O Water Products Co Div of a O Smith Corp. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-251-7889 |
| Primary Part Number | DVE-250-60 |
| Item Name | Heater,water,electric |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Smith a O Water Products Co Div of a O Smith Corp |
| Status | ACTIVE |
| Thermostatic Switch | INCLUDED |
| Water Outlet Connection Thread Size and Series/type Designator | 1/2-11 NPT |
| Water Outlet Connection Quantity | 1 |
| Phase | THREE |
| Heating Element Wattage Rating | 60.000 MIDDLE |
| Frequency in Hertz | 60.0 |
| Voltage in Volts and Current Type | 460.0 AC |
| Capacity | 120.0 GALLONS TANK |
| Heating Capacity Per Hour | 246.0 GALLONS |
| Water Inlet Connection Quantity | 1 |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Water Inlet Connection Thread Size and Series/type Designator | 1/2-11 NPT |
| Insulated Feature | INCLUDED |
| Attachment Device | INCLUDED |
| Heating Element Type | ANY ACCEPTABLE |
| Temp Rise Per Hour | 100.0 FAHRENHEIT DEGF |
| Switch Type | SINGLE THROW |
| Surface Treatment | GLASS FIBER INSIDE |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| DVE-250-60 PRIMARY | Smith a O Water Products Co Div of a O Smith Corp (USA) |
NSN 4520-01-251-7889 is a Heater,water,electric, manufactured by Smith a O Water Products Co Div of a O Smith Corp, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-251-7889 has 1 manufacturer part number on file: DVE-250-60 (Smith a O Water Products Co Div of a O Smith Corp).
Key specifications for DVE-250-60: Thermostatic Switch: INCLUDED; Overall Height: 93.000 INCHES NOMINAL IN; Water Outlet Connection Thread Size and Series/type Designator: 1/2-11 NPT; Water Outlet Connection Quantity: 1. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.